Builds the browser-facing URL of a relay session, <baseWs>/realtime/relay/<id>, with no trailing slash, so a provider SDK that appends its own path keeps the ticket in the path.
<baseWs>/realtime/relay/<id>
The MJAPI websocket origin (ws(s)://host[:port]), as ResolveRealtimeProxyBaseWsUrl returns it.
ws(s)://host[:port]
The ticket id from RealtimeProxyRegistry.IssueRelaySession.
Builds the browser-facing URL of a relay session,
<baseWs>/realtime/relay/<id>, with no trailing slash, so a provider SDK that appends its own path keeps the ticket in the path.